Silicon/RISC-V/ProcessorPkg/Library/RiscVReadMachineModeTimer/MachineModeTimerLib/MachineModeTimerLib.S

//------------------------------------------------------------------------------
//
// Read mtimer through platform library.
//
// Copyright (c) 2021, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
//
// SPDX-License-Identifier: BSD-2-Clause-Patent
//
//------------------------------------------------------------------------------
#include <RiscVImpl.h>

.data

.text
.align 3

.global ASM_PFX(RiscVReadMachineTimerInterface)
//
// Read machine mode timer CSR.
// @retval a0 : 64-bit machine timer.
//
ASM_PFX (RiscVReadMachineTimerInterface):
    call RiscVReadMachineTimer
    ret
RiscV/ProcessorPkg: Create read mtime CSR library instances Create library instances of reading Machine mode timer. - MacineModeTimerLib is used to read mtime CSR through platfrom library. - EmulatedMacineModeTimerLib is used to read mtime CSR through shadow CSR. Cc: Sunil V L <sunilvl@ventanamicro.com> Cc: Daniel Schaefer <daniel.schaefer@hpe.com> Signed-off-by: Abner Chang <abner.chang@hpe.com> Reviewed-by: Daniel Schaefer <daniel.schaefer@hpe.com> Reviewed-by: Sunil V L <sunilvl@ventanamicro.com> 2021-07-08 11:11:43 +08:00			`//------------------------------------------------------------------------------`
			`//`
			`// Read mtimer through platform library.`
			`//`
			`// Copyright (c) 2021, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>`
			`//`
			`// SPDX-License-Identifier: BSD-2-Clause-Patent`
			`//`
			`//------------------------------------------------------------------------------`
			`#include <RiscVImpl.h>`

			`.data`

			`.text`
			`.align 3`

			`.global ASM_PFX(RiscVReadMachineTimerInterface)`
			`//`
			`// Read machine mode timer CSR.`
			`// @retval a0 : 64-bit machine timer.`
			`//`
			`ASM_PFX (RiscVReadMachineTimerInterface):`
			`call RiscVReadMachineTimer`
			`ret`